# Would you switch over to E85?

**URL:** https://forums.speedlife.net/t/would-you-switch-over-to-e85/27388
**Category:** NYSpeed Automotive
**Created:** [April 10, 2007, 10:25am UTC](https://forums.speedlife.net/t/would-you-switch-over-to-e85/27388 "2007-04-10T10:25:17Z")
**Posts on this page:** 1
**Showing post:** 18

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### Author: ![Bacon](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bacon/32/7230_2.png) [@Bacon](https://forums.speedlife.net/u/Bacon)
#### Post date: [April 11, 2007, 3:49pm UTC](https://forums.speedlife.net/t/would-you-switch-over-to-e85/27388/18 "2007-04-11T15:49:35Z")

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[quote=“ImportMuscle,post:16,topic:27388"”]

yes, but on vechiles such as GM’s Flex fuel vehicles, does gas mileage drop when switching to e85?

and how would one combat the high octane of the ethanol fuel?

Higher compression and stronger spark?

[/quote]

Yes it will drop, same for any FFV.

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